[EASI-3208] Update named statements to defer closure

[OddTomBrooks]

EASI-3208

Changes and Description

• Update named statements to defer stmt.Close()

How to test this change

• Visit the website
• Try various actions which incur store calls
• Assert that there are no emergent issues

PR Author Review Checklist

• Met the ticket's acceptance criteria, or will meet them in a subsequent PR.
• Added or updated tests for backend resolvers or other functions as needed.
• Added or updated client tests for new components, parent components, functions, or e2e tests as necessary.
• Updated the Postman Collection if necessary.

PR Reviewer Guidelines

• It's best to pull the branch locally and test it, rather than just looking at the code online!
• Check that all code is adequately covered by tests - if it isn't feel free to suggest the addition of tests.
• Always make comments, even if it's minor, or if you don't understand why something was done.

[ClayBenson94]

One minor nit, but everything else looks great!